xkcd #3298: Aerospace Flowchart
Title text:
Someday, we will find the problem that goes with this solution.
Transcript:
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Source: https://xkcd.com/3298/
Oh you must be European, if you're concerned about fires aboard airships. American airships don't burn; we've never been stupid enough to use hydrogen as a lifting gas. USS Akron and USS Macon both crashed, much of the crew of one froze to death and the other proved surprisingly survivable. Compare that to the Hindenberg or R-101.